Browse Prior Art Database

Use RFID for material coherency control

IP.com Disclosure Number: IPCOM000082458D
Original Publication Date: 2005-Feb-28
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 70K

Publishing Venue

IBM

Abstract

The present invention is directed to a system to detect the existence of internals cracks in cement, concrete or any other material used in the construction.

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Use RFID for material coherency control

In order to keep a good security level of buildings, it is important to control on a regular basis the structure of these buildings. But when structures are covered with decorative elements, for example wall paper or thermal isolation, it is very difficult to have acess to the internals elements of these structures. In modern constructions, some important constraints can cause internal fissures. The present invention is directed to a system to detect the existence of internals cracks in cement, concrete or any other material used in the construction. The system according to the present invention is very easy to use and the additional cost is low.

As shown in Figure 1, the main idea of the invention is to use a modified RFID circuit. The disclosed device comprises three parts: - The first part is an active chip, this chip include a RFID circuit in order to transmit an identifier when an external scan occur. - The second part is a terminator. This terminator can be passive or active (this second part can also include a RFID circuit). - The last part is a link between the active chip and the terminator. The link can be made of a pair of electrical wire or with an optical fiber.

This elementary device operates as follows. When the active chip and the terminator are linked (by means of an electrical or optical connection), the RFID circuit when activated by an external scanner, returns a standard response (standard identifier)....